Latest Inventions, Goods, Services
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2022
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Invention
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Roll-type marking tool provided with movable writing end. A roll-type marking tool provided with ... |
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2021
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Invention
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Automatic marking tool having multi-section refill. Provided in the present invention is an autom... |
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2019
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Invention
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Disk wheel supporting movement means. A disk wheel supporting a movement means is a disk-shaped w... |
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Invention
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Multi-purpose helicopter having dual compartment structure, electronic omni-directional rotor ass... |
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2018
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Invention
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Automatic refill-propelling off-axis pen. Disclosed is an automatic refill-propelling off-axis pe... |
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